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arXiv · 2301.07688

The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V

Andrés Almeida·Scott F. Anderson·Maria Argudo-Fernández·Carles Badenes·Kat Barger·Jorge K. Barrera-Ballesteros·Chad F. Bender·Erika Benitez·Felipe Besser·Dmitry Bizyaev·Michael R. Blanton·John Bochanski·Jo Bovy·William Nielsen Brandt·Joel R. Brownstein·Johannes Buchner·Esra Bulbul·Joseph N. Burchett·Mariana Cano Díaz·Joleen K. Carlberg·Andrew R. Casey·Vedant Chandra·Brian Cherinka·Cristina Chiappini·Abigail A. Coker·Johan Comparat·Charlie Conroy·Gabriella Contardo·Arlin Cortes·Kevin Covey·Jeffrey D. Crane·Katia Cunha·Collin Dabbieri·James W. Davidson Jr.·Megan C. Davis·Nathan De Lee·José Eduardo Méndez Delgado·Sebastian Demasi·Francesco Di Mille·John Donor·Peter Dow·Tom Dwelly·Mike Eracleous·Jamey Eriksen·Xiaohui Fan·Emily Farr·Sara Frederick·Logan Fries·Peter Frinchaboy·Boris T. Gaensicke·Junqiang Ge·Consuelo González Ávila·Katie Grabowski·Catherine Grier·Guillaume Guiglion·Pramod Gupta·Patrick Hall·Keith Hawkins·Christian R. Hayes·J. J. Hermes·Lorena Hernández-García·David W. Hogg·Jon A. Holtzman·Hector Javier Ibarra-Medel·Alexander Ji·Paula Jofre·Jennifer A. Johnson·Amy M. Jones·Karen Kinemuchi·Matthias Kluge·Anton Koekemoer·Juna A. Kollmeier·Marina Kounkel·Dhanesh Krishnarao·Mirko Krumpe·Ivan Lacerna·Paulo Jakson Assuncao Lago·Chervin Laporte·Ang Liu·Chao Liu·Xin Liu·Alexandre Roman Lopes·Matin Macktoobian·Steven R. Majewski·Viktor Malanushenko·Dan Maoz·Thomas Masseron·Karen L. Masters·Gal Matijevic·Aidan McBride·Ilija Medan·Andrea Merloni·Sean Morrison·Natalie Myers·Szabolcs Mészáros·C. Alenka Negrete·David L. Nidever·Christian Nitschelm·Audrey Oravetz·Daniel Oravetz
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Abstract

The eighteenth data release of the Sloan Digital Sky Surveys (SDSS) is the first one for SDSS-V, the fifth generation of the survey. SDSS-V comprises three primary scientific programs, or "Mappers": Milky Way Mapper (MWM), Black Hole Mapper (BHM), and Local Volume Mapper (LVM). This data release contains extensive targeting information for the two multi-object spectroscopy programs (MWM and BHM), including input catalogs and selection functions for their numerous scientific objectives. We describe the production of the targeting databases and their calibration- and scientifically-focused components. DR18 also includes ~25,000 new SDSS spectra and supplemental information for X-ray sources identified by eROSITA in its eFEDS field. We present updates to some of the SDSS software pipelines and preview changes anticipated for DR19. We also describe three value-added catalogs (VACs) based on SDSS-IV data that have been published since DR17, and one VAC based on the SDSS-V data in the eFEDS field.

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Andrés Almeida, Scott F. Anderson, Maria Argudo-Fernández, Carles Badenes, Kat Barger, Jorge K. Barrera-Ballesteros, Chad F. Bender, Erika Benitez, Felipe Besser, Dmitry Bizyaev, Michael R. Blanton, John Bochanski, Jo Bovy, William Nielsen Brandt, Joel R. Brownstein, Johannes Buchner, Esra Bulbul, Joseph N. Burchett, Mariana Cano Díaz, Joleen K. Carlberg, Andrew R. Casey, Vedant Chandra, Brian Cherinka, Cristina Chiappini, Abigail A. Coker, Johan Comparat, Charlie Conroy, Gabriella Contardo, Arlin Cortes, Kevin Covey, Jeffrey D. Crane, Katia Cunha, Collin Dabbieri, James W. Davidson Jr., Megan C. Davis, Nathan De Lee, José Eduardo Méndez Delgado, Sebastian Demasi, Francesco Di Mille, John Donor, Peter Dow, Tom Dwelly, Mike Eracleous, Jamey Eriksen, Xiaohui Fan, Emily Farr, Sara Frederick, Logan Fries, Peter Frinchaboy, Boris T. Gaensicke, Junqiang Ge, Consuelo González Ávila, Katie Grabowski, Catherine Grier, Guillaume Guiglion, Pramod Gupta, Patrick Hall, Keith Hawkins, Christian R. Hayes, J. J. Hermes, Lorena Hernández-García, David W. Hogg, Jon A. Holtzman, Hector Javier Ibarra-Medel, Alexander Ji, Paula Jofre, Jennifer A. Johnson, Amy M. Jones, Karen Kinemuchi, Matthias Kluge, Anton Koekemoer, Juna A. Kollmeier, Marina Kounkel, Dhanesh Krishnarao, Mirko Krumpe, Ivan Lacerna, Paulo Jakson Assuncao Lago, Chervin Laporte, Ang Liu, Chao Liu, Xin Liu, Alexandre Roman Lopes, Matin Macktoobian, Steven R. Majewski, Viktor Malanushenko, Dan Maoz, Thomas Masseron, Karen L. Masters, Gal Matijevic, Aidan McBride, Ilija Medan, Andrea Merloni, Sean Morrison, Natalie Myers, Szabolcs Mészáros, C. Alenka Negrete, David L. Nidever, Christian Nitschelm, Audrey Oravetz, Daniel Oravetz. 2023-07-06. The Eighteenth Data Release of the Sloan Digital Sky Surveys: Targeting and First Spectra from SDSS-V. https://doi.org/10.3847/1538-4365%2Facda98

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